miami heat fans with his own spin on the classic, "if i ever fall in love," with an assist by dwyane wade. the performance may have been off-key. but the event was on-point, raising scholarship money for underprivileged teens. >> great. >> to be honest, you go into the studio together. >>> finally, everybody, we encourage you to hug somebody. get over here, stephanopoulos. it's now scientifically proven that hugging lowers blood pressure and reduces stress and improves your memory. it's a new study out of austria. it says the hormone -- they spelled it phonetically. the hormone is replaced in your blood when you hold someone close. it has to be someone you know. someone you know and trust. hugging a stranger could have the opposite effect. >> like walk through airports. >> don't go up and randomly hug someone. that could be dangerous to your health. yeah. hug it out. scottie, get over here. >> i want a hug. >> come here. i know. hug it out. you feel better? >> much better. >> okay, good. >>> how about a little pop quiz? >> do it. >> everybody, this morning, we ask a very important questio